– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Tue 14 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Tue 14 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Tue 14 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 26mm), mostly on Tue night. Becoming colder with a light covering of snow ,mostly falling on Wed morning. Freeze-thaw conditions (max 4°C on Tue afternoon, min -2°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 17°C on Sun afternoon, min 1°C on Fri night). Wind will be generally light. | |||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  | | | | |  |  | | |  | |  | |
mod. rain | mod. rain | light snow | light snow | light snow | some clouds | rain shwrs | rain shwrs | some clouds | rain shwrs | rain shwrs | rain shwrs | some clouds | some clouds | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | 1 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
8 | 8 | 8 | — | 1.1 | — | 0.2 | 0.8 | — | 0.2 | 0.5 | 0.1 | — | — | — | — | — | — | |
max °C | 3 | 4 | 4 | 1 | 2 | 0 | 3 | 4 | 2 | 4 | 6 | 4 | 9 | 11 | 9 | 15 | 17 | 13 |
min °C | 3 | 3 | -1 | 0 | 2 | -2 | 1 | 4 | 0 | 2 | 5 | 1 | 5 | 11 | 8 | 11 | 17 | 11 |
0 | -2 | -1 | 0 | 1 | -2 | 1 | 3 | 0 | 2 | 5 | 1 | 5 | 11 | 8 | 11 | 17 | 11 | |
1050 | 1100 | 500 | 650 | 800 | 400 | 800 | 1050 | 350 | 950 | 1250 | 1200 | 1900 | 2300 | 2650 | 2850 | 2950 | 3050 | |
Cloud base (m) | 550 | 500 | 600 | 550 | 550 | 600 | 600 | 650 | 900 | 600 | 750 | 650 | 950 | 2650 | 5900 | 9100 | ||
 | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — |
 | — | 7:57 | — | — | 7:59 | — | — | — | 8:00 | — | — | 8:01 | — | — | 8:02 | — | — | 8:04 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 26mm), mostly on Tue night. Becoming colder with a light covering of snow ,mostly falling on Wed morning. Freeze-thaw conditions (max 4°C on Tue afternoon, min -2°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 17°C on Sun afternoon, min 1°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.